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Phthalimide-based zinc coordination polymer, preparation method and application thereof

A technology of phthalimide-based zinc and coordination polymers, which is applied in the field of synthesis of organic-inorganic hybrid color-changing materials, can solve problems such as energy band structure damage, limit fatigue resistance, etc. The method is simple and easy to implement, and the effect of excellent discoloration characteristics

Active Publication Date: 2022-07-05
山西师范大学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of forcibly taking away the electrons inside the material by means of the oxidation of oxygen in the air will destroy the energy band structure inside the material to a certain extent, thus directly limiting the color change-fading cycle of inorganic-organic hybrid materials. Anti-fatigue performance

Method used

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  • Phthalimide-based zinc coordination polymer, preparation method and application thereof
  • Phthalimide-based zinc coordination polymer, preparation method and application thereof
  • Phthalimide-based zinc coordination polymer, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Weigh 4-PMMPD (20 mg, 0.05 mmol) into a beaker, add 5 mL of DMF solution, heat and stir until it becomes clear, add Zn(NO 3 ) 2 (28 mg, 0.15 mmol), trimesic acid (21 mg, 0.1 mmol), and stirred for 10 minutes to give a colorless clear liquid. It was placed in the dark at room temperature for 2-3 days to obtain colorless and transparent bulk crystals, which were washed with DMF, filtered and dried. Yield: 41.6% (based on 4-PMMPD).

Embodiment 2

[0042] Weigh 4-PMMPD (20 mg, 0.05 mmol) into a beaker, add 5 mL of DMF solution, heat and stir until it becomes clear, add Zn(NO 3 ) 2 (57 mg, 0.3 mmol), trimesic acid (21 mg, 0.1 mmol) and stirred for 10 minutes to give a colorless clear liquid. It was placed in the dark at room temperature for 2-3 days to obtain colorless and transparent bulk crystals, which were washed with DMF, filtered and dried. Yield: 50.4% (based on 4-PMMPD).

Embodiment 3

[0044] Weigh 4-PMMPD (20 mg, 0.05 mmol) into a beaker, add 5 mL of DMF solution, heat and stir until it becomes clear, add Zn(NO 3 ) 2 (95 mg, 0.5 mmol), trimesic acid (32 mg, 0.15 mmol), and stirred for 10 minutes to give a colorless clear liquid. It was placed in the dark at room temperature for 2-3 days to obtain colorless and transparent bulk crystals, which were washed with DMF, filtered and dried. Yield: 62.3% (based on 4-PMMPD).

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Abstract

The invention relates to the synthesis of organic-inorganic hybrid color-changing materials, in particular to a phthalimide-based zinc coordination polymer and a preparation method and application thereof; its chemical formula is [Zn(4-PMPMD)(BTC)] n xDMF, 4‑PMPMD is N , N -Bis(4-pyridylmethyl)-phthalimide, BTC is a carboxylic acid unionized trimesic acid, DMF is N , N -Dimethylformamide; using phthalimide with excellent electron deficiency as electron acceptor, it is hybridized with oxygen-containing carboxylic acid electron donor through the coordination of metal zinc to provide phthalimide group A photochromic material with ultrafast photoreversibility and super fatigue resistance of zinc coordination polymer, the discoloration material based on the intermolecular ET mechanism provided by the present invention can change color under ultraviolet light irradiation and fade under visible light irradiation, and obtain A crystalline material with super fatigue resistance during discoloration-fading cycles, which greatly expands the application range of color-changing materials.

Description

technical field [0001] The invention relates to the synthesis of organic-inorganic hybrid color-changing materials, in particular to a phthalimide-based zinc coordination polymer and a preparation method and application thereof. Background technique [0002] Electron transfer (ET)-type inorganic-organic hybrid photochromic materials exhibit important photochromic behaviors in sensing, protection, display, and switching due to their flexible and diverse compositions and structures, as well as good visual detectable photochromic behaviors. actual or potential application value. The performance indicators of inorganic-organic hybrid photochromic materials are mainly reflected in three aspects: (1) light response rate and color contrast in the process of color change; (2) reversibility in the process of fading; (3) color change-fading cycle Fatigue resistance in the process. Currently, electron-donor and acceptor units are self-contained in a specific manner (coordination and / ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C09K9/02
CPCC08G83/008C09K9/02C09K2211/188Y02E10/549
Inventor 郝朋飞付云龙
Owner 山西师范大学
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